Mechanics and heat; a text book for collleges and technical schools (1916)
Franklin, William S. (William Suddards), 1863-1930, Macnutt, Barry, 1878-1936, [from old catalog] joint author · New York, The Macmillan company; London, Macmillan & co., ltd. · leaf 218
two curves a and b, Fig. 96, is due to hysteresisand also to elastic lag. 95. Elastic lag; viscosity. Many substances, glass for ex-ample, when subjected to stress, take on a certain amount ofstrain quickly, after which the strain increases slowly for a time;and when the stress is relieved, a… … Fig. 96. 204 ELEMENTS OF MECHANICS. are under stress. Such substances are said to be viscous. Nearlyall metals are viscous when subjected to great stress. Elastic hysteresis, elastic lag, and viscosity cause energy to bedissipated in a substance when it is strained. Thus the vibrationsof a steel…
Mechanics · Heat
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